[Buildroot] Analysis of build failures

[Arnout Vandecappelle]

On 07/05/14 09:31, Thomas Petazzoni wrote:
>>        arm |                   zeromq-4.0.4 | NOK | http://autobuild.buildroot.net/results/7c552e514f8c13ba8cdd420dc5bbf5edac915a83/

> Oh maan, I hate C++ errors. Any C++ person in the place to explain
> what's going on? Might be related to BR2_PREFER_STATIC_LIB.

 The issue is that the curve_keygen tool is written in C, but the zeromq library
itself is C++. Therefore, it needs to be linked with libstdc++. With dynamic
linking, the ELF dependencies will take care of that, but with static linking,
it has to be added explicitly. And it looks like libtool doesn't find that
dependency on libstdc++.

 Renaming curve_keygen.c to curve_keygen.cpp and adjusting Makefile.am
accordingly solves it, but I'm not sure if that is the best solution...

 Oh well, adding LIBS=-lstdc++ works as well...

 Regards,
 Arnout


-- 
Arnout Vandecappelle                          arnout at mind be
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